CONF File Extension
Configuration Information Format
- File Type conf
- Popularity
- Application Sublime Text
- Category Configuration Files, Text Files, Virtual Machine Files
- Format Text
What is a CONF file?
Files with the CONF extension are associated with Configuration Information Format and are categorized as Configuration Files, Text Files and Virtual Machine Files, making up 571 files.
CONF files are supported by Linux, Mac OS and Windows. When working with CONF files, you can rely on 14 programs, including Sublime Text, Atom and Notepad++.
Programs that support CONF files
How to open a CONF file?
If you can’t open a CONF file, it is usually because the necessary software is missing. To resolve the issue, select the right program from the list for your operating system. Then go to the official website of the developer, download the software, and install it.
Sublime Text, Atom and Notepad++ stand out as the preferred programs to manage CONF files effectively. To get the latest version of Sublime Text, open the Sublime HQ Pty website where a universal installer for all operating systems is available.
When you finish installing Sublime Text, the system will automatically launch CONF files with it.
Set Sublime Text to open CONF by default
Change default apps on Mac
- Right-click or use Control + Left-click on the desired CONF file to access the file’s context menu;
- Choose "Open in Application" and click "Other";
- At the bottom of the window, you will see the "Enable" menu. It is already set to the default option, "Recommended Programs";
- Within this menu, select "All Programs" and then search for Sublime Text. Check the box next to "Always open in app" to make it the default program.
Set default programs for Windows
- Take the first step by right-clicking on your CONF file. Next, select "Open With" and then choose "Choose another app" from the available options;
- Find the Sublime Text application in the pop-up window and select it as your preferred program;
- Select the "Always use this application" check box and click "OK" to save your selection as the default application for opening CONF files.
Easy CONF Troubleshooting
When facing challenges with CONF files, simple adjustments in your software can often solve the problem. Find helpful troubleshooting guidance below.
How do I know if my CONF file has been damaged?
CONF configuration files that have become corrupted may display one or more of the following symptoms:
- Error alerts occur when actions are performed on the file;
- The file exhibits poor performance during editing operations in Sublime Text;
- When opening the file, errors occur or the inability to access its contents;
- Unexplained CONF file size inflation;
- Sublime Text or other programs stop responding or crash when trying to handle the file;
Why does Sublime Text quit or crash unexpectedly?
Lack of software updates is a possible reason behind Sublime Text crash. Keep your Sublime HQ Pty products up to date by installing the latest updates.
Restarting your computer is often an effective solution to resolve various common problems. Therefore, it is recommended to do so before making any changes to the software configuration.
What methods can be used to repair a damaged CONF file?
In a data recovery program, open the damaged CONF file and select the "Repair" menu option. Allow the recovery process to complete, which will automatically repair the damaged configuration files.
How to edit a CONF file?
To make changes to CONF files, you need specialized software that allows both opening and editing the configuration files. Online CONF editors offer fewer capabilities than applications optimized for Configuration Information Format.
Best CONF Editor Software in 2026
After analyzing the criteria, we have created a list of CONF editors available for use.
| CONF Editor Software | Developer | Platforms | Overall Rating |
|---|---|---|---|
| TextEdit | Apple | Mac OS | 4.9 out of 5 (44 reviews) |
| Notepad++ | Notepad++ Team | Windows | 4.8 out of 5 (43 reviews) |
| Atom | - | Windows, Mac OS, Linux | 4.5 out of 5 (41 review) |
| vEdit | Greenview Data | Windows | 4.5 out of 5 (40 reviews) |
| Sublime Text | Sublime HQ Pty | Windows, Mac OS, Linux | 4.4 out of 5 (46 reviews) |
| Gedit | GNOME | Linux | 4.2 out of 5 (42 reviews) |
| Windows Notepad | Microsoft | Windows | 4.1 out of 5 (43 reviews) |